What is the mm for the alen keys

Dear Customer: Short arm(Metric): 1.5,2,2.5,3,4,4.5,5,5.5,6,7,8mm: Long arm(Metric):1.5,2,2.5,3,4,4.5,5,5.5,6mm

if something breaks how do i get it replaced.

Personally don't think they will break

Are the bits like torx etc rain proof treated?

they are chrome plated. I havnet soaked them in UK road water long term to see how well they stand up...

How long are the extension bars in mm?

1/2 Drive 75 mm 3/8 Drive 150 mm, 75 mm & 38 mm 1/4 Drive 75 mm & 37mm

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WORKPRO 450-Piece Drive Socket Set 1/2" 1/4" 3/8", CR-V Metric and Imperial with Quick-Release Ratchet Wrench, Spanners, Bits Set, Mechanics Tool for Car Repair

WORKPRO 450-Piece Drive Socket Set 1/2" 1/4" 3/8", CR-V Metric and Imperial with Quick-Release Ratchet Wrench, Spanners, Bits Set, Mechanics Tool for Car Repair

Product ID: 78199806

Details

Brand
WORKPRO
Colour
Silver Black
Item length
18.31 Inches
Item weight
19.7 Kilograms
Material
Chrome Steel

✨Triple chrome anti-corrosion finish

🔒Secure, lockable blow molded case

🛠️450-piece comprehensive set

Description

🛠️ Unlock your inner mechanic with the ultimate 450-piece tool arsenal!

EMERGENCY READY - Perfect for home, garage, or roadside fixes—never get caught unprepared.
ORGANIZED EFFICIENCY - Custom blow molded case with locking clips keeps your kit ready and secure.
PRO GRADE DURABILITY - Heat-treated CR-V steel built to withstand daily heavy-duty use.
ALL IN ONE POWERHOUSE - 450 precision tools covering metric & imperial sizes for every repair mission.
RUST PROOF RELIABILITY - Triple chrome plating ensures your tools stay pristine rain or shine.

The WORKPRO 450-Piece Drive Socket Set is a professional-grade mechanics toolkit featuring heat-treated chrome vanadium steel tools with a triple chrome anti-corrosion finish. It includes metric and imperial sockets, quick-release ratchets, spanners, bits, and hex keys, all organized in a durable, lockable blow molded case. Designed for both home maintenance and automotive repair, this comprehensive set offers exceptional value, durability, and convenience for professionals and DIY enthusiasts alike.

Specifications

ASIN	B07CJ2LL3F
Best Sellers Rank	221,591 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,858 in Socket Sets
Brand	WORKPRO
Colour	Silver, Black and Red
Customer Reviews	4.4 4.4 out of 5 stars (1,366)
End Style	hang hole
Finish	Polished
Global Trade Identification Number	00820909748618
Head Style	Hex
Is Non Sparking	No
Is Racheting	Yes
Item Length	18.31 Inches
Item Package Quantity	1
Item Weight	19.7 Kilograms
Manufacturer	WORKPRO
Material	Chrome Vanadium Steel
Model Number	WP450-PMECH
Operation Mode	Manual
UPC	820909748618
Unit Count	1.0 count
Wrench Length Style	standard

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